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    Reasons for the slow drilling speed of pneumatic drilling rigs and troubleshooting

    Release time:2021-7-20    This article is read 1424 second

    The crawler pneumatic drilling rig has the advantages of reasonable structure design, energy saving, simple operation and convenient movement. It is widely used in deep water well operations such as farmland irrigation wells, civil water intake wells, ground source heat pump wells, construction projects, and bridge pile holes.

    Reasons for the slow drilling speed of pneumatic drilling rigs and troubleshooting:

    ① Insufficient thrust of the cylinder: The compressed air pipeline exceeds the rated load, the leakage of the pipeline, and the wear of the valve cause low working air pressure and insufficient cylinder thrust.

    ②The drill rod specifications are unqualified or have been bent and deformed: check whether the drill rod is bent, if it is bent, it should be straight before use; check whether the drill bit specifications are correct, and use a drill bit of appropriate specifications. Check whether the drill bit is sharp, use a sharp drill bit; if the drill pipe hole is blocked, check and clean the drill pipe hole.

    JLD-300.jpg

    ③Insufficient water supply: the water valve of the drilling rig cannot be fully opened, and the water flow is not smooth; the water source pressure is low, and the water pressure should be kept within the range of 0.6~1.2MPa; the water supply valve is not fully opened, the water supply pipe is blocked, the pipe is damaged, and the joint leaks. Causes low water pressure and low flow.

    Reasons for the slow drilling speed of pneumatic drilling rigs and troubleshooting
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